Answer:
50.625
Step-by-step explanation:
1) 10/2=5
10+5= 15
2) 15/2 = 7.5
15+7.5 = 22.5
3) 22.5/2 = 11.25
22.5+11.25= 33.75
4) Answer: 33.75/2 = 16.875
33.75+16.875 = 50.625
See it in the pic
13
1. Put 5 in for x. 2×5+3
2.10+3
3.13
The formula for the law of cosines is:
a^2 = b^2 + c^2 - 2*b*c*cos(angle)
In this triangle b = 7, c = 8 and angle = 32.
a^2 = 7^2 + 8^2 - 2*7*8*cos(32)
a^2 = 18.018
a = SQRT(18.018)
a = 4.24
C = 4.2 feet.
